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@mr_bojangles
Quick question people...
I need a new cog for my Pompino. I'm currently running 48x18 giving me 70GI on 23c tyres. I mainly commute on my bike from Dartford to Woolwich, which is a bit hilly in places, but I can get over them all (just). I was thinking of taking the opportinity to raise my gearing by going for a 17t cog. Will the 4GI difference be noticable or do you reckon I should go for a 16t for 8GI more?
TIA
Peace
Kurt